To find the Those! side quest, you're going to have to do a little exploration. In fact, you'll likely find this one early in the game, since the location of the side quest, Grayditch, is a mostly-abandoned settlement of previously-standing buildings southeast of Megaton. You'll have to roam around the area for a bit until you run into a little boy wandering the Wasteland by himself. His name is Bryan Wilks, and he's in a bit of a bind. You see, mutated Fire Ants have all but destroyed any living vestiges in and around Grayditch, and apparently there are now only seven survivors. Wilks needs your help to rectify this situation, and naturally, you're the man for the job.<brclear ></brclear>

Now, a word on the Fire Ants. You've no doubt noticed the damage these pesky foes can do as you were looking for Bryan Wilks in the first place. There are three types of ant you're going to run into. The Fire Ant Worker is the most innocuous of them all, takes little damage to kill, and lacks aggression. Next up is the Soldier, whose flamethrower attack can devastate you. And last (but not least) is the Warrior, who is both aggressive-as-hell and armed with an equally devastating flamethrower attack. Naturally, this means melee weapons, shotguns and anything that does close-quarter damage should be avoided at all costs. Long-range weapons are key here if you have any hope whatsoever of surviving.

Your first objective here is to find young Bryan's father. You could have run into Bryan anywhere, but you'll want to locate him in a preservation unit adjacent to a burned-out diner (see the screen below). Here, you can speak with him in his preservation unit or raid the nearby diner's Nuka-Cola machine for some Nuka-Cola and Nuka-Cola Quantum. Thereafter, turn around so that your back is facing the diner and look ahead. Remember when Bryan told you that his house is the one with the billboard on it? Well, you'll see a billboard hanging on a building next to a shack you can't yet enter. Head towards that building and inside, where you'll encounter a grizzly scene.

Bryan Wilk's father is dead. You'll find his corpse, along with many Fire Ant corpses, strewn across the half-burning first floor of their house. Search his body to find the Shack Key and then begin searching the house for more items. There's plenty of incidental crap here (Plates, Cups and the like), but there are some valuables as well. A Chinese Assault Rifle can be found, as well as .44 Rounds, 10mm Rounds, and 5.56mm Rounds. Continue searching for more, including a Stimpak and Rad-X in their medical kit, a valuable Pilot Light in their oven, and foodstuffs in their fridge, including InstaMash, Blamco Mac and Cheese, and more. You can also sleep off any injuries in the vacated queen-sized bed upstairs before proceeding.

Now that we know Bryan's father is dead, it's time to leave this house to deliver to him the bad news. You can speak with him however you want, but you're going to want to be at least mildly caring if you want to see this mission through to the end. The Capital Wasteland is a tough place to live, and young Bryan knows this. Even though his father is now confirmed to have passed, he wants you to take out the source of the Fire Ant infestation so no one else has to go through what he's gone through. And just like that, our next objective, to take out the Fire Ant source, will flash on-screen.

But it's going to be a mystery to you yet as to just where you have to go to accomplish this next objective. Thankfully, the answer we seek isn't too far off from our current location. Head back to your house and look to the left of the entrance, where you should find a makeshift shack that's locked up. With the Shack Key you found on Bryan's dad, you can enter the shack, which is owned by a man named Dr. Lesko. Examine the room to find Abraxo Cleaner, some Hot Plates, a Hammer, Wrench and more. But it's Doctor Lesko's Password Recording sitting on the desk that's going to be of the most use to you. Once you grab that, head to his computer and the password to it will be inserted automatically, allowing you to browse his computer's contents. Once you examine the file that tells you where he's found a source of ants, a new objective will be added to your Pip-Boy, and you'll now know where you're going.

Your destination is the Marigold Metro Station, but you may not want to run straight there yet. The Ant Workers, Soldiers and Warriors are worth plenty of experience points, and you may want to run around killing as many of these foes as you can before you nullify their source for good. Once you accomplish destroying the source of the genetically-mutated Fire Ants, you won't be able to fight droves of them anymore, so do take advantage of their presence now. Attempt to drive up your experience meter as much as you can stand. There appears to be a finite amount of these guys walking around Grayditch, however, so there's a limit as to how much fun you can have.

The Marigold Metro Station is located at the south end of Grayditch. In fact, if you've thoroughly explored Grayditch and its surrounding environs already, then chances are you've ran into the Metro. That means that your Pip-Boy's map should have it on there already, and you can teleport there instantly. If this isn't the case, then head due south from the Grayditch icon -- the station is hard to miss. Keep an eye out (and ear, as well) for any remaining Fire Ants, doing them in as you encounter them. When you arrive at the Metro station, climb down the stairs and head on inside. This is where the Fire Ants are spawning from.

The Marigold Metro Station is a dark, dank place, so have your Pip-Boy's light on to make things easier for you. Head down the stairs, forward and to the left, following the linear pathway as it winds through Fire Ant corpses (we didn't initially run into any live Fire Ants, but you may, so keep your firearm at the ready). After going through the turnstiles, head to your left and into an offshoot room. You can find some goods from thoroughly examining the shelves and boxes. We found a couple of Metro Tickets, some Pre-War Money, a Carton of Cigarettes, a Sensor Module and some Wonderglue, amongst other things. After grabbing these goods, you can continue down the linear corridors and staircases you encounter from that room, killing any remaining Fire Ants as you go. You'll eventually reach the subway tunnel itself, which is indicative that you're going in the right direction.

As a brief aside, you may want to consider backtracking towards the entrance to the Metro station and taking the normal route through the turnstiles and down towards the train platform. There aren't many items (or any, really) that you will find by going this route, but there are Fire Ants galore down this route. Remember -- in Fallout 3, as with any RPG ever made, experience is king. Take this route to mow down Fire Ants and earn valuable experience, but after doing that, backtrack to the previous path, heading through the door into the tunnel. This will put you on the right track and make it much easier to give you in-depth directions.

Fire Ant Warriors abound down here, so keep your gun at the ready, and never hesitate to use healing items (after all, most Fire Ants will drop their meat when killed, which is a minor healing agent). With your back facing the door you came through, head to your left. Feel free to examine the tunnel you reach on your right (you'll find 10mm Ammo and Nuka-Cola here, amongst other stuff), but ultimately you'll want to keep on a straight-forward path until the tunnel splits ahead. The tunnel will continue forward and reach a dead end, and you'll be forced left. More Fire Ants will need to be slain, of course, but when you reach this turn, you'll again know you're on the right track.

As you head forward, you'll see a train on the tracks, which will force you to either head to the right or to the left to walk around it. First, head to the left side of the train. You'll see a flashing light ahead alongside a door. This door can be picked open easily, and once within, you'll find a plethora of goods you'll likely want to add to your inventory before proceeding. Amongst those goods, you'll find plenty of ammunition (Shotgun Shells, 10mm Rounds and the like), as well as some Frag Mines, a Stimpak, some Purified Water, a Ripper and more. Grab these goods, pick open the safe to find some Naughty Nightwear if you so desire, and then head back out to the tunnel. Oh, and if a guy runs in and demands the Naughty Nightwear back, deal with him how you want. We opted to off him with a few gunshots to the head.

Once back out in the tunnel, continue leftward down the rest of the tunnel until the train shortly thereafter ends (heading around to the other side of the train will result in you finding nothing whatsoever, so don't bother). You'll find another connecting tunnel here, which you should examine after eliminating the Fire Ant threat in the area. Here, things get fairly interesting. You'll find William Brandice's body on the ground, who is one of Bryan's surviving neighbors (well, he's not surviving anymore). Search him thoroughly, and you'll find a Laser Pistol, some Energy Cells and other goods. But most importantly, you'll find William Brandice's Key, which you can use to open up a locked box back at his house in Grayditch.

Heading back to the corridor you came down will lead to a dead end (thanks to an awkwardly-sitting train), so head to the right and continue up the corridor, where you will soon find another dead end with two doors, one on each side. Head through the door on the left first, and you'll run into Dr. Lesko, the man you've been seeking out. This maniac of a doctor is responsible for the mutated Fire Ants (an effect he's termed pyrosis). You can speak to him any way you want, but you'll want to make sure you don't piss him off too much, that way you can finish the side quest. Agree to take out the Fire Ants by killing the five guardians near the Queen's location, and all should thereafter be well. Before heading out, though, search his makeshift laboratory. Two 10mm Pistols can be found, as well as a Stimpak, Blood Pack, two Conductors, a Motorcycle Gas Tank, and more.

But when you're ready to deal with the Queen Ant and her guardians, you'll want to go out of Lesko's lab via the other door in the small room, on the left side. This leads to an adjacent corridor which, once traversed, will lead to a hole in the ground (you can only go right and towards the hole here; going left will lead to a dead end almost immediately). Once you drop down into the hole, you can then go through a rickety old wooden door, which will lead to the Fire Ant lair itself.

You won't encounter any of your normal kind of Fire Ants here. There are no Workers, Soldiers, or Warriors to be seen here. Instead, you'll run into five of the Queen Fire Ants guardians, who are fast-moving and aggressive to say the very least. And yes, just like their lesser friends, they can shoot endless streams of fire, thanks to Lesko's genetic mishap. Combine their aggression, fast movement and ability to shoot fire, and you're going to have your hands full.

Making matters worse is that you're going to be in dimly-lit, hard-to-maneuver-in corridors. Thankfully, however, they're linear, so getting lost shouldn't be an issue. And what's more, you should be able to have decent visibility with your Pip-Boy's light. The best indicator that an ant is nearby is the noise they make. Feel free to lure them towards you, using Frag Mines to blow their legs apart before going into VATS to finish the deal. Make sure you kill all five of them, and leave the Queen alone (you'll need to wrap around her resting area to finish off the last of her five guardians). As long as the Queen doesn't see you or hear you, you shouldn't have a problem, but if she does, run! She'll begin shooting green poison at you, and her fast movement through those thin corridors is something to surely be scared of.

Once the deed is done, you can head back to Dr. Lesko's lab and report your findings to him. Be honest with him and he'll reward you with his Lab Coat, as well as with a permanent statistical enhancement (we went with the strength enhancement, but you can go in another direction entirely if you so desire). With this situation figured out, you can then head out of the Marigold Metro Station the way you came in. There should be no more enemies here to speak of, so it'll be a leisurely trip indeed.

You're almost done with this mission now. Once back outside, transport yourself immediately to Grayditch, and seek out Bryan once more in the preservation chamber. Report that the Fire Ants have been killed and their threat nullified, and he'll tell you that the Fire Ants in Grayditch began turning on each other, taking each other out. You won't have to deal with those suckers anymore! But there's one more thing you have to do for young Bryan before you call it quits. It's the only way for the side quest to truly come to a conclusion, so you need to do this one way or the other.

Bryan might not be threatened by the Fire Ants anymore, but his dad is still dead, and he's all alone in the dangerous nuclear wasteland known as Washington, D.C. He refers to finding a home for you, and while you can let him flounder by himself (ending the side quest with some negative karmic debt), you can agree to help him find a place to live. You have multiple options, but the easiest and most natural choice you should make is to send him to live with Vera in Rivet City. Transport yourself to that far-off location in the southeast corner of the map and find Vera at her hotel on the ship's upper deck. Talk to her about Bryan, then go back to Grayditch and tell him to go to Rivet City to live with her. Case closed!